#include<stdio.h>
int main()
{
    int a=100;
    int b=10;
    int *p_1,*p_2;//变量名是p_1,p_2;
    p_1=&a;
    p_2=&b;
    printf("a is %2d b is %2d",a,b);
    printf("\na is %2d b is %2d",*p_1,*p_2);



     
}